[ic] Should I buy another CPU?

[interchange-users@interchange.redhat.com (Bill Carr)]

On Wed, 2002-03-20 at 16:07, Mike Heins wrote:
> Quoting Orko (orko@eacceleration.com):
> > <SNIP>
> > > > <music@labyrinth.net.au> writes:
> > > > 
> > > > > I would really like to try the (RPC mode, MaxServers 0) solution and
> > > > > see how it goes before investing in more hardware, particularly as
> > > > > it is suggested that it may not be a hardware problem.
> > > > 
> > > > ,----[ interchange.cfg ]
> > > > | # Set to "low", "high", or "rpc" to get different server parameters.
> > > > | Variable  TRAFFIC  rpc
> > > > |
> > > > | ifdef TRAFFIC =~ /rpc/i
> > > > | Message RPC traffic settings.
> > > > | PreFork             Yes
> > > > | StartServers        5
> > > > | MaxServers          0
> > > > | MaxRequestsPerChild 100
> > > > | HouseKeeping        2
> > > > | PIDcheck            120
> > > > | endif
> > > > `----
> > > > 
> > > > I'm not sure if the StartServers config of 5 will conflict with the
> > > > MaxServers of 0.
> > > 
> > > I don't *think* that it will conflict.  MaxServers 0 isn't actually
> > > setting the MaxServers to 0, it's setting it to unlimited.  As Mike
> > > explained it means that Interchange will not use two of the Perl signals
> > > to determine the number of running servers, it will spawn as many as it
> > > needs.
> > </SNIP>
> > 
> > I've been running with that exact configuration (StartServers 5) and the
> > MaxServers 0 setting since the patch was found.  No problems to report. 
> > ...and conversions have improved by 5% with no additional changes
> > through Verisign!  THANK YOU MIKE AND RON!
> > 
> > Whether new hardware would have aleviated the symptoms or not I would
> > rather have this patch in and not have to worry about sometime in the
> > future when the server is loaded more.  I'm running a PIII 800, 1G RAM
> > and SCSI RAID - sure, I could throw some more RAM at it or upgrade the
> > processor, but then I would feel like a M$ user... ;-)
> 
> By the way, I see problems like this all the time when I have session
> and temp space on RAID. The write speed for hardware RAID often is bad,
> no matter the claims of the manufacturer.
> 
> Using software RAID for temp and session space is slow suicide.
My session and temp space is on a NFS mounted RAID5. Mylex DAC1164P PCI
RAID Controller. 3 Seagate Cheetah 18XL, 10000rpm, ST318404LC drives.
Should I buy another disk to put on the SCSI or IDE bus for session and
temp space? If yes, what are the hardware recommendations?

-- 
Bill Carr
Worldwide Impact
bill@worldwideimpact.com
413-253-6700